Asana: Dustin and Justin's Quest for Flow
businessweek.com
businessweek.com
I've heard the rumors and am excited to finally try this out, but I'm a bit disappointed that in won't run on IE without a browser plugin. If the intent is for this to be used by teams, I would assume that the folks at Asana would realize that a large number of organizations (mine included) still use IE, and often make it difficult for people to install plugins.
For me, it's going to be tough for any tool to replace Wunderlist, which has native app support (Mac/iPad/iPhone) and is free and elegant.